398041853 has 4 divisors (see below), whose sum is σ = 434227488. Its totient is φ = 361856220.

The previous prime is 398041837. The next prime is 398041867. The reversal of 398041853 is 358140893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 398041853 - 2⁴ = 398041837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 398041853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398041873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18092801 + ... + 18092822.

It is an arithmetic number, because the mean of its divisors is an integer number (108556872).

Almost surely, 2^398041853 is an apocalyptic number.

It is an amenable number.

398041853 is a deficient number, since it is larger than the sum of its proper divisors (36185635).

398041853 is a wasteful number, since it uses less digits than its factorization.

398041853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36185634.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 398041853 is about 19950.9862663478. The cubic root of 398041853 is about 735.6020199165.

The spelling of 398041853 in words is "three hundred ninety-eight million, forty-one thousand, eight hundred fifty-three".